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2021 Vol.63, Issue 2 Preview Page
Development of Snow Load Sensor and Analysis of Warning Criterion for Heavy Snow Disaster Prevention Alarm System in Plastic Greenhouse

비닐온실 폭설 방재 예⋅경보 시스템을 위한 설하중 센서 개발과 적설 경보 기준 분석

Dongsu Kima
,
Youngjoon Jeongb
,
Sang-ik Leec
,
Jonghyuk Leed
,
Kyuhong Hwange
,
Won Choif†
김 동수a
,
정 영준b
,
이 상익c
,
이 종혁d
,
황 규홍e
,
최 원f†
aMS Student, Department of Rural Systems Engineering, Seoul National University
bMS Student, Department of Rural Systems Engineering, Global Smart Farm Convergence Major, Seoul National University
cPhD Student, Department of Rural Systems Engineering, Global Smart Farm Convergence Major, Seoul National University
dPhD Student, Department of Rural Systems Engineering, Global Smart Farm Convergence Major, Seoul National University
ePhD, Researcher, STA Corporation Ltd
fAssociate Professor, Department of Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Global Smart Farm Convergence Major, Seoul National University
a서울 대학교 농촌 시스템 공학과 석사 과정
b서울 대학교 글로벌 스마트 팜 융합 전공 농촌 시스템 공학과 석사 과정
c서울 대학교 글로벌 스마트 팜 융합 전공 농촌 시스템 공학과 박사 과정 학생
d서울 대학교 글로벌 스마트 팜 융합 전공 농촌 시스템 공학과 박사 과정 학생
e박사, 연구원, STA Corporation Ltd
f서울 대학교 농업 생명 과학 연구소 농촌 시스템 공학과 부교수 글로벌 스마트 팜 융합 전공
† Corresponding author Tel.: +82-2-880-4715, Fax: +82-2-873-2087 E-mail: fembem@snu.ac.kr
2021. pp. 75-84
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Abstract

As the weather changes become frequent, weather disasters are increasing, causing more damage to plastic greenhouses. Among the damage caused by various disasters, damage by snow to the greenhouse takes a relatively long time, so if an alarm system is properly prepared, the damage can be reduced. Existing greenhouse design standards and snow warning systems are based on snow depth. However, even in the same depth, the load on the greenhouse varies depending on meteorological characteristics and snow density. Therefore, this study aims to secure the structural safety of greenhouses by developing sensors that can directly measure snow loads, and analysing the warning criteria for load using a stochastic model. Markov chain was applied to estimate the failure probability of various types of greenhouses in various regions, which let users actively cope with heavy snowfall by selecting an appropriate time to respond. Although it was hard to predict the precise snow depth or amounts, it could successfully assess the risk of structures by directly detecting the snow load using the developed sensor.

Keywords
Plastic greenhouse
snow load
sensor
markov chain
alarm system
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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 63
  • No :2
  • Pages :75-84
  • Received Date : 2021-01-24
  • Revised Date : 2021-01-26
  • Accepted Date : 2021-03-08
  • DOI :https://doi.org/10.5389/KSAE.2021.63.2.075
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